Quality Inspection

During the production of diesel EUI injectors, there are a total of 15 steps of quality inspection. They are the selection of raw material, the inspection during production, and the inspection of finished products. In these 15 steps, one step missed can cause the bad quality or failure of production; therefore, every process has specific workers responsible, and that finally made our professional production team.

Here are some descriptions of the diesel EUI injectors’ production processes:

1. Inspect raw materials and make a backup of the raw materials test report.

2. Cutting raw materials with a blanking machine;

3. Inspect the raw material’s cutting diameter and length;

4. Forging and forming processing on the raw materials;

5. Inspectors conduct all kinds of inspections of forming blank;

6. Remove the blank scrap.

7. Blast the surface of the blank;

8. Conduct surface treatment inspection after sandblasting;

9. Perform blank machining;

10. Process the diesel EUI injector’s body seal threading;

11. Process diesel EUI injector body connection threading;

12. Process the diesel EUI injector’s hole;

13. Inspector conducts a general inspection;

14. Install the diesel EUI injector;

15. The packing workshop finishes product packaging.

Before being sent out of the factory, the finished diesel EUI injectors still need to undergo three inspections—full inspection, random inspection, and batch inspection. In these inspections, different brands of test benches are used to test the same diesel EUI injector for a total of no less than three times.

Apart from the above, the diesel EUI injector is one of the most important running parts; it is also one of the parts with the highest damage rate, even tiny particles can cause failure of the diesel EUI injector and even entire components. Therefore, it is essential to ensure that the entire production process, including installation and its working environment, is dust-free.